New set up pi-hole is not blocking anything

Hi there,

I just set up my pi-hole new again (on a rbpi 3B+) as my old one crashed due to outdated operating system.
Set up worked good, I imported my configuration via teleporter, ran gravity but nothing happens. Percentage blocked=0,0%

Debug token please find attached: https://tricorder.pi-hole.net/3y9nmpRF/

Can you figure out what's wrong?
Thanks

I still struggling with this situation. Perhaps you need more information. My router is a connectbox from Vodafone - a rather old one (7-8 years old) - so far working good and stable.
I know that running pi-hole with a connectbox is not that easy, but it worked in the past, only with this new setup I don't get it running.
The settings in the router are like this:

Debug token: https://tricorder.pi-hole.net/PdEd5KtQ/

Obviously it has something to do with my Connectbox. I just got it running, blocking rate around 20%. But after 1,5h the internetconnection was down. Didn't change anything on the setting of the router or pi-hole.
Does anyone have experience with the Connectbox + pi-hole?